How to charge a battery. An average car battery has a capacity of around 48 amp hours which means that, fully charged, it delivers 1 amp for 48 hours, 2 amps for 24 hours, 8 amps for 6 hours and so on.
This occurs when one of the soft, gel-filled discs between the vertebrae of the spine bulges or ruptures, compressing and/or irritating the sciatic nerve. Another common cause of sciatica is muscle spasm that compresses the sciatic nerve as it travels through the muscles.
Skeletal muscle spasms and cramps are usually caused by overuse of the muscle, either from exercise or a repetitive motion. Spasms can also occur if a muscle is overstretched or held in the same position for too long.The muscle essentially becomes hyperexcitable and fails to relax.uscle spasms and cramps can also be caused by neuromuscular disorders, such as multiple sclerosis or a spinal cord injury. Movement disorders called dystonias also lead to forceful contractions. Dystonias can also be a complication of stroke. Certain medications can cause involuntary muscle contractions as well.